Saint Marys climate

Typical historical weather for Saint Marys, United States, averaged across 10 years of hourly climate data. Pick a date for a specific day.

Want today's actual conditions instead? See the current forecast for Saint Marys.

Annual average

13.1°C

across all months

Warmest month

29.3°C

Jul average high

Coolest month

-3.5°C

Jan average low

Annual rainfall

1386mm

total per year

Monthly averages

Average daily high/low temperature (band) and monthly rainfall (bars).

● Avg high● Avg low▮ Rainfall

Records on file

Hottest day

36.7°C

15 July 2024

Coldest day

-26.7°C

22 January 2025

Wettest day

91mm

19 June 2021

Windiest day

7.6m/s

23 December 2022